RRB NTPC 2021-06-04-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers
RRB NTPC 2021-06-04-2021-1

RRB NTPC 2021-06-04-2021-1 RRB Questions

1.
In a right circular cylinder, the ratio of the curved surface area to the total surface area is 2 : 5. Find the ratio of the height to the radius of the cylinder.
A.
3 : 4
B.
2 : 5
C.
5 : 3
D.
2 : 3
😑 View Answer Error
ANSWER :
D. 2 : 3
2.
For a frequency distribution, mean, median and mode are connected by the relation:
A.

\( \text{Mean} = \frac{3\,\text{Median} - \text{Mode}}{2} \)

B.

\( \text{Mean} = \frac{2}{3\,\text{Median} - \text{Mode}} \)

C.

\( \text{Mean} = \frac{3\,\text{Median} - 2\,\text{Mode}}{2} \)

D.

\( \text{Mean} = \frac{3\,\text{Median} + \text{Mode}}{2} \)

😑 View Answer Error
ANSWER :

A. \( \text{Mean} = \frac{3\,\text{Median} - \text{Mode}}{2} \)

3.
In Oct 2020, NASA named the Cygnus Spacecraft after the astronaut _____.
A.
Sunita Williams
B.
Kalpana Chawla
C.
Ravish Malhotra
D.
Rakesh Sharma
😑 View Answer Error
ANSWER :
B. Kalpana Chawla
4.

Select the Venn diagram that best represents the relationship between the following classes.
Peacock, Sparrow, Bird

A.

C

B.

A

C.

D

D.

B

😑 View Answer Error
ANSWER :

C. D

5.
How many schedules were there in the Wildlife (Protection) Act, 1972 of India (as of 2021)? (Note: The Wild Life (Protection) Amendment Act, 2022 reduced the schedules to four.)
A.
VII
B.
V
C.
IV
D.
VI
😑 View Answer Error
ANSWER :
D. VI
6.
If A and B are acute angles such that tan A = cot B, then the value of A + B is:
A.
90°
B.
0°
C.
360°
D.
180°
😑 View Answer Error
ANSWER :
A. 90°
7.
If a sum of money doubles itself in 10 years, then the rate of simple interest is:
A.
10%
B.
20.50%
C.
10.50%
D.
20%
😑 View Answer Error
ANSWER :
A. 10%
8.
Which is the award instituted by the Government of India for individuals or communities from rural areas who have shown extraordinary courage and dedication in protecting wildlife?
A.
Sunderlal Bahuguna Award
B.
Sanjay Gandhi Paryavaran Award
C.
Amrita Devi Bishnoi Award
D.
BP Pal Award
😑 View Answer Error
ANSWER :
C. Amrita Devi Bishnoi Award
9.
If a : b = 2 : 5, b : c = 5 : 8, c : d = 8 : 11, then a : d is:
A.
3 : 5
B.
5 : 8
C.
2 : 11
D.
2 : 7
😑 View Answer Error
ANSWER :
C. 2 : 11
10.
Select the number that can replace the question mark (?) in the following series.
3, 6, 5, 12, ?, 24, 11, 48, 13
A.
9
B.
7
C.
6
D.
8
😑 View Answer Error
ANSWER :
B. 7
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